398385074 has 8 divisors (see below), whose sum is σ = 598503168. Its totient is φ = 198884020.

The previous prime is 398385073. The next prime is 398385077. The reversal of 398385074 is 470583893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (398385073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152642 + ... + 155229.

It is an arithmetic number, because the mean of its divisors is an integer number (74812896).

Almost surely, 2^398385074 is an apocalyptic number.

398385074 is a deficient number, since it is larger than the sum of its proper divisors (200118094).

398385074 is a wasteful number, since it uses less digits than its factorization.

398385074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308520.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 398385074 is about 19959.5860177510. The cubic root of 398385074 is about 735.8133892540.

The spelling of 398385074 in words is "three hundred ninety-eight million, three hundred eighty-five thousand, seventy-four".